---
product_id: 771830548
title: "BLUEFIRE JFB-102S 1/2 lb Silver Solder Brazing Flux powder for Silver Phos Copper Solder Brazing Rods HVAC Plumbing Solder Lower Welding Soldering Melting Temperature Easy Flow for Solder Fluid"
brand: "bluefire"
price: "VT8916"
currency: VUV
in_stock: false
reviews_count: 5
url: https://www.desertcart.vu/products/771830548-bluefire-jfb-102s-1-2-lb-silver-solder-brazing-flux
store_origin: VU
region: Vanuatu
---

# Dry powder for superior flow 600-850℃ active range Half-pound value pack BLUEFIRE JFB-102S 1/2 lb Silver Solder Brazing Flux powder for Silver Phos Copper Solder Brazing Rods HVAC Plumbing Solder Lower Welding Soldering Melting Temperature Easy Flow for Solder Fluid

**Brand:** bluefire
**Price:** VT8916
**Availability:** ❌ Out of Stock

## Summary

> 🔥 Elevate your solder game with flawless flow and unbeatable strength!

## Quick Answers

- **What is this?** BLUEFIRE JFB-102S 1/2 lb Silver Solder Brazing Flux powder for Silver Phos Copper Solder Brazing Rods HVAC Plumbing Solder Lower Welding Soldering Melting Temperature Easy Flow for Solder Fluid by bluefire
- **How much does it cost?** VT8916 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/771830548-bluefire-jfb-102s-1-2-lb-silver-solder-brazing-flux)

## Best For

- bluefire enthusiasts

## Why This Product

- Trusted bluefire brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Bulk Value Pack:** Generous 0.5 lb powder ensures you never run out mid-project.
- • **Superior Fluidity:** Dry powder formula enhances wettability and flow for stronger, cleaner joints.
- • **Precision Heat Control:** Operates efficiently within 600-850℃ for flawless silver and copper soldering.
- • **Versatile Metal Compatibility:** Perfect for silver, copper, steel, and stainless steel in HVAC and plumbing.
- • **Oxide & Contaminant Eliminator:** Removes oxides and oils to maximize solder adhesion and joint integrity.

## Overview

BLUEFIRE JFB-102S is a premium 1/2 lb silver solder brazing flux powder designed for professional HVAC, plumbing, and metalworking applications. Operating between 600-850℃, its dry powder formula enhances fluidity and wettability, ensuring strong, reliable joints across silver, copper, steel, and stainless steel metals. This flux effectively removes oxides and oils, prevents re-oxidation, and supports superior heat conduction, making it an essential tool for demanding soldering and brazing tasks.

## Description

Soldering flux is essential in brazing and soldering, providing functions crucial for strong, reliable joints. Soldering flux assists in heat conduction, ensuring even heat distribution across the joint area, which is vital when working with silver solder and copper solder for effective bonding. A key function of brazing flux is to remove oxides from the surfaces of parent materials and brazing rods. These oxides can inhibit the flow and adhesion of solder or brazing material. By removing them, flux paste enhances wettability and fluidity, which is crucial in plumbing solder applications and when using brazing rods with flux. In addition to clearing oxides, soldering flux reduces surface tension, enlarging the brazing area. This allows silver solder or copper solder to spread more uniformly, resulting in stronger connections, which is crucial for silver solder HVAC systems and brazing rods for copper HVAC. Solder and flux also clear oil stains from parent materials. Contaminants like oil can prevent proper adhesion, leading to weak joints. By eliminating these, silver solder flux ensures strong bonds, particularly in Phosphorus Filler Brazing and Filler Brazing Rod flux applications. Additionally, soldering flux prevents re-oxidation during soldering by forming a protective barrier over metal surfaces. This protection is vital for products like Stay Brite 8 solder and flux, which require clean surfaces for optimal performance. Available in solid paste, liquid, and gas forms, soldering flux is indispensable in soldering and brazing tasks, from plumbing repairs to complex HVAC installations. By enhancing soldering efficiency and reliability, soldering flux ensures the integrity and longevity of metal joints across various applications.

Review: I’ve been soldering, brazing and welding most my life but never silver soldering. After asking around the consensus was this was the best and using the suggestions of how to prep etc I went for it. I needed to silver solder the end of the stainless steel counter top together. It worked great and came out perfect. Little buffing and you couldn’t tell it had been soldered. Scored big points with my wife as she got the stainless countertops she’d been wanting.
Review: جيد بس الكميه قليله مقارنه بالسعر .

## Features

- Causes serious eye damage.
- Harmful if inhaled.
- Harmful to aquatic life with long lasting effects.
- May cause damage to organs through prolonged or repeated exposure.
- Use with silver-bearing alloys for jointing copper-copper, steel-stainless steel, and dissimilar metals: This soldering flux is ideal for applications involving silver solder and copper solder. Its active range of 600-850℃ makes it suitable for silver solder HVAC and brazing flux applications, ensuring strong joints in plumbing solder and brazing rods with flux. Whether you're working with brazing rods for copper HVAC or silver solder flux, this product guarantees reliable performance.
- Half-pound value pack: This solder and flux combination comes in a convenient half-pound package, offering more contents than typical water-mixed flux paste. The flux powder is perfect for extensive use with silver solder and brazing rods, providing exceptional value for plumbing solder projects and HVAC applications involving silver solder and brazing rods for copper HVAC.
- Completely dry powder: The flux powder formulation contains more active ingredients than water-mixed flux paste, enhancing its effectiveness with silver solder and copper solder. This brazing flux is designed to improve fluidity and wettability in silver solder HVAC and other applications requiring brazing rods with flux. It's an essential component for those needing high-quality soldering flux in demanding environments.
- Enhances welding performance: This solder and flux product increases the welding performance of silver copper brazing alloys, significantly improving fluidity and wettability. It is specifically formulated for use with silver solder, brazing rods, and copper solder, making it indispensable for plumbing solder and HVAC applications. The enhanced capabilities of this silver solder flux ensure optimal results with brazing rods for copper HVAC.
- Important functions of soldering flux: The functions of this soldering flux include assisting in heat conduction, clearing oxides from the surface of parent materials and brazing materials, reducing surface tension, and removing oil stains from soldered materials. It enlarges the brazing area and prevents re-oxidation, making it a versatile choice for silver solder, brazing rods with flux, and copper solder applications. Available in solid paste, liquid, and gas forms, it is an essential tool for achieving reliable joints with silver solder flux in HVAC and plumbing solder tasks.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B093W8SFDX |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 713,548 in DIY & Tools ( See Top 100 in DIY & Tools ) 91 in Solder Fluxes |
| Customer Reviews | 4.8 4.8 out of 5 stars (95) |
| Date First Available | 10 Dec. 2022 |
| Installation method | gas-welding |
| Item Package Quantity | 1 |
| Item Weight | 227 g |
| Item model number | JFB-102S |
| Manufacturer | Bluefire |
| Material | stainless_steel, copper, silver, steel, metal |
| Number of Pieces | 1 |
| Part Number | JFB-102S |
| Pattern | 1/2lb Silver Copper Brazing Flux Powder |
| Product Dimensions | 7.62 x 10.16 x 7.62 cm; 226.8 g |

## Images

![BLUEFIRE JFB-102S 1/2 lb Silver Solder Brazing Flux powder for Silver Phos Copper Solder Brazing Rods HVAC Plumbing Solder Lower Welding Soldering Melting Temperature Easy Flow for Solder Fluid - Image 1](https://m.media-amazon.com/images/I/41+T-CYg-9S.jpg)
![BLUEFIRE JFB-102S 1/2 lb Silver Solder Brazing Flux powder for Silver Phos Copper Solder Brazing Rods HVAC Plumbing Solder Lower Welding Soldering Melting Temperature Easy Flow for Solder Fluid - Image 2](https://m.media-amazon.com/images/I/4101S3+xA5S.jpg)
![BLUEFIRE JFB-102S 1/2 lb Silver Solder Brazing Flux powder for Silver Phos Copper Solder Brazing Rods HVAC Plumbing Solder Lower Welding Soldering Melting Temperature Easy Flow for Solder Fluid - Image 3](https://m.media-amazon.com/images/I/416jXFVspAL.jpg)
![BLUEFIRE JFB-102S 1/2 lb Silver Solder Brazing Flux powder for Silver Phos Copper Solder Brazing Rods HVAC Plumbing Solder Lower Welding Soldering Melting Temperature Easy Flow for Solder Fluid - Image 4](https://m.media-amazon.com/images/I/416rUfbyjuL.jpg)
![BLUEFIRE JFB-102S 1/2 lb Silver Solder Brazing Flux powder for Silver Phos Copper Solder Brazing Rods HVAC Plumbing Solder Lower Welding Soldering Melting Temperature Easy Flow for Solder Fluid - Image 5](https://m.media-amazon.com/images/I/418V4xKYoPL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by A***S on 1 October 2025*

I’ve been soldering, brazing and welding most my life but never silver soldering. After asking around the consensus was this was the best and using the suggestions of how to prep etc I went for it. I needed to silver solder the end of the stainless steel counter top together. It worked great and came out perfect. Little buffing and you couldn’t tell it had been soldered. Scored big points with my wife as she got the stainless countertops she’d been wanting.

### ⭐⭐⭐ Review
*by م***ي on 10 June 2023*

جيد بس الكميه قليله مقارنه بالسعر .

### ⭐⭐⭐⭐⭐ Review
*by B***D on 3 August 2025*

Super

## Frequently Bought Together

- BLUEFIRE JFB-102S 1/2 lb Silver Solder Brazing Flux powder for Silver Phos Copper Solder Brazing Rods HVAC Plumbing Solder Lower Welding Soldering Melting Temperature Easy Flow for Solder Fluid
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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-01-27*